SANTA CLARA – As much as the 49ers invested and improved last year at wide receiver, could more of the same unfold next week when free agency opens?

Headlining that market are Allen Robinson and Sammy Watkins, who on Monday avoided the franchise tag of the Jacksonville Jaguars and Los Angeles Rams, respectively. The 49ers, meanwhile, did not tag any of their pending free agents, including Carlos Hyde, arguably the top running back available after Le’Veon Bell got franchised by the Pittsburgh Steelers.

With quarterback Jimmy Garoppolo maximizing his receivers’ potential last season to earn the 49ers’ trust and a NFL-record contract, the 49ers will want to maximize Garoppolo’s options down field.

The hunch: The 49ers won’t go after a top-line wide receiver and instead earmark chunks of their $50-plus million in salary-cap space on a cornerback (see: Trumaine Johnson, Malcolm Butler), a tight end (see: Tyler Eifert, Jimmy Graham) and a running back (see: Dion Lewis, Isaiah Crowell).

That said, here is a quick look at which wide receivers could arrive March 14 and add to a corps that includes incumbent starters Pierre Garçon, Marquise Goodwin and Trent Taylor, as well as top returning backups Aldrick Robinson, Kendrick Bourne and Victor Bolden Jr.

— 1. Allen Robinson (Jaguars): He’s coming off an anterior cruciate ligament repair, and while we know that wouldn’t scare off ex-49ers czar Trent Baalke, how rich will the current regime gamble? Robinson was the NFL’s 2015 leader in touchdown catches, and defensive coordinator Robert Saleh (an ex-Jaguars assistant) can vouch for him one way or the other. Robinson, a 2014 second-round pick, will be 25 this season.

— 2. Sammy Watkins (Rams): A third team in three years? First thing the 49ers should do is seek any input from Goodwin, a former Bills teammate. Watkins’ big-play ability resurfaced with the Rams (39 catches, eight touchdowns) after a sour stint with the Bills, who drafted the 6-foot-1 receiver fourth overall in 2014.

— 3. Jarvis Landry (Dolphins): If he gets traded on the franchise tag, it would command a relatively high draft pick, and the 49ers aren’t in that much of a bind to give up such equity for a slot receiver to replace the up-and-coming Taylor.

— 4. Taylor Gabriel (Falcons): This 5-foot-8 speedster played in Kyle Shanahan’s offense with the Browns (2014) and Falcons (2016). He had a career-high six touchdown catches in 2016 for Atlanta, but only two touchdowns his other three seasons in the NFL.

— 5. Jordan Matthews (Bills): This 6-3 target produced over 2,600 yards and 19 touchdowns his first three seasons with the Eagles before a 2017 trade to the run-oriented Bills.